Bench or hand plane.



G. SABO. BENCEORHANDPLANE. APPLICATION FILED FEB.19.19I5.

l l 46,525 Patented July 13, 1915.

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Patented `July 13, 1915.

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GEORGE sano, 0F PHILADELPHIA, PENNSYLVANIA.

nunon on HAND PLANE.

To all vll/wm it may concern.'

Be it known that l, GEORGE SABO, a subject of the Emperor L but now residing at the cityof Philadelphia, in the county of Philadelphia and State of have invented certain new and useful Improvements in Bench or Hand Planes, of which 'the following isa specification.

The principal object of my invention is to provide a bench or hand plane in which the character of the work performed isvniaintained uniform indenitely due to the inanner in which the blade can be adjusted withthe block and to compensate for increase in the size of'the slot due to wear of the working surface of the block.

My invention stated in general terms. consists of a bench or hand plane constructively arranged in substantially the manner hereinafter described and claimed.

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The nature, scope and characteristic features of my present invention will be more fully understood' from the following description taken in connection with the accompanying drawings forming part hereof, in which` Figure l, is a side elevational view of a bench or hand plane of my invention. Fig. 2, is a vertical longitudinal sectional view through the plane, certain of the parts being shown in elevation. Fig. 3, is a top or plan View of the plane. Fig. 4. is a front end view of'said plane, Fig. 5, is a vertical sectional view on the -line 5, 5, of Fig. 2. F ig. 6, is a .diagrammatic view, showing the relative positions of the blade with respect to the shiftable section of the block. due to wear of the working surface of said block; and Fig. 7, is a perspective view of a key for tightening the heads t0 the centrally arranged angular bolt extending through the fore-part of the slidable section of said block.

f Referring to the drawings a, is the oblong block provided with a rear inclining depression al, forming a bearing yfor a plate a?, carrying a threaded sleeve m3,. of a take-up device (1.4. for a slotted and inclined blade b,

ln the slot t1 of the said blade b, is mounted a stud b2, of a cap b3. This cap is'p'rcvided with a right angular upper perforated extension 5, embracing the stein of the screw at, as clearly shown in Fig. 2, whereby the blade t, may be shifted, to vary the cutting Specification of Letters Patent.

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'of the transverse slot a6,

Patented July 13, MM5.

Application filed February 19, 1915. Serial No. 9,227.

edge within the slot o6, with respect to the.

The il? by a tightworking surface of the said plane. lower portion of the blade and cap are held in operative relationship ening bolt be and clamp 71T, the latter having a locking cam LS, with a spring 09, as clearly shown in F ig.'2. rlChe blade b, along one edge as illustrated in Fig. l, is provided with a scale.

It is important that the slot c6, should be maintained always practically uniform in size or dimension for insuring the free release of the shavings from the article being planed, without regard to wear of the bottom a5, due to constant use of the plane. In this connection and to provide therefor, the front of the block of the plane a, is inade with a shiftable section al, slidableA in ways as, provided in the respective walls of the said block a. The section a7, is slotted at a, d10, a, and a, respectively and through which are inserted cross-bolts a, o, al and o16. Certain of the said bolts cl3, a 'and 0,15, are tightening means for thefsaid section when shifted to prevent displacement after the required position of the said section has been arrived at to define' the requisite size b and cap b3, are mounted for the particular' planing operations. The bolt al, is of a square cross-section clearly shown in Fig. 2, has extending into it a 'longitudinal bolt a, from the front of the said section at, carrying the hand-hold als. Surrounding the head of the bolt a, is a perforated saddle a2", as clearly shown in Figs. 1. 2. 3 and il', and through the perforation of said saddle (L20, a tool canA be inserted ,for turning the said bolt al@ and thereby moving the said section either farther into the transverse slot a, to reduce .thesize thereof with respect tothe blade and cap 3, in position therein or vice versa. The angular crossbolt al, is provided on the respective ends with tightening or headed jam nuts operated preferably by a key am. as clearly illustrated in Fig. 7. The front lower portion ofthe shiftable section a, is provided with a steplike formation to determine therefrom at a glance, the eXtent of wear of the bottom of'. of the said plane a, from time to time d'ueI lo use thereof, and just how far such weax can be further permitted by the said steplike formation, without ative elements of the said section with rcspect tothe said block and also what adjustin which the blade and the relative position of the blade I), due

to such wear and hence to what extent the section a, with its step-like formation must be shifted inward in the said block (1, as well as the blade b, elevated to restore the plane.

again to a relatively operative position for uniform vvorkbeing derived therefrom.

Having thus described the. nature and ohjects of my invention, what 'I claim as new and desire to secure b v Letters Patent is In combination, a plane having a mouthpiece section provided ivith an upper oblong slot having a cross-bolt mounted therein, 20

lower oblong slots havingcross-b'olts mounted therein and an intermediate slothaving a square-har mounted therein, 'tightening means on both ends thereof, a longitudinal bolt connected with said square har, the head ot' said bolt operable from the front end of the plane and said upper and lovver bolts having, Atightening-ineans connected therewith and operable from the sides o f said plane,substantiall)v as and for the pur poses described.

In Witness ivhereot', I have hereunto set in v signature 1n the presence ot the tivo subscribing Witnesses.

y l GEORGE SABO. Witnesses Tnonas M. SMITH, Bose SMITH. 

